jquery plugin for preventing entering any input not matching a regexp

Question

does jquery have any plugin that prevents entering any input to a textbox that doesnt match a regexp pattern. for example , i have a textbox for entering payment amount, i want user t be able to enter only numebers and . in the textbox, all other input wont have any effect on the textbox..

thanks

Answer 1

Masked Input Plugin

jQuery(function($){   
    $("#paymentAmount").mask("9999.99");
});